9 is the geometric mean between x and 12

Given f (x) = 5x-1 What is f (-2)

The sum of 2 times a number and 7 is equal to 6

Amy brought a bag of lollipops. It contained 30 lollipops and 6 of them were grape flavored. What would be a good prediction of the number of grape lollipops there would be in a bag of 100 lollipops?

Mary has to pick up Molly from daycare. She has ¼ of a tank of gas. A quarter of a tank is equal to 5 gallons. How many gallons does her tank hold? A) 10 B) 12 C) 15 D) 20

Which expression is equivalent to the following expression? 4 (x + 3) + 6 (x - 3) 24x - 6 10x + 30 10x - 6 24x + 30

What is a solution of a linear equation in two variables?

You and your friend sell lemonade. You get 1/3 of the total money. Your friend gets $20 less than the total amount collected. Write a system and solve to find how much each of you made.

Paul says that in the number 6367 one 6 is 10 times as great as the other 6. is correct? explain why or why not.

A fair die will be rolled 9 times. What is the probability that 4, 5, or 6 is rolled exactly 2 times? Round your answer to four decimal places.

What is 4/12 in simplest form